About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Multi-Principal Element Alloys III: Mechanical Behavior
|
Presentation Title |
Impact of Co and Fe Substitutions on Microstructural Evolution and Mechanical Characteristics of Quaternary Equiatomic High-entropy Alloys |
Author(s) |
Elyorjon Jumaev, Orifjon Mikhliev, Dilshodbek Usmonov, Mukhammadjon Usmonov, Sarvar Rozikhodjaev |
On-Site Speaker (Planned) |
Elyorjon Jumaev |
Abstract Scope |
The influence of substitutions of the elements on the microstructure and mechanical behaviors of quaternary has been analyzed in detail. The quaternary AlCrFeNi alloy was fabricated by the replacement of elements from the dual-phase AlCoCrNi high-entropy alloy to achieve a low density with good mechanical properties and microstructural evolution. The AlCrFeNi alloy exhibited a nano-grained dual-phase structure consisted of Cr-Fe-rich BCC and Ni-Al-rich B2 phases with a high degree of coherence in the dendrite region. In particular, the Ni-Al-rich B2 phase revealed the non-stoichiometries composition between the Ni and the Al, which almost correlative to the Ni-Al-rich B2 phase with a non-stoichiometric composition of previous AlCoCrNi high-entropy alloy. The mechanical behaviors of the alloys were analyzed at room and high-temperature diapasons. The research provides a new route to achieve low density in contrast with other elements and demonstrates an excellent mechanical property in chemical compositional difference. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Mechanical Properties, Characterization |